Skateboard



FIG. 1 is an upper perspective view of the skateboard showing my design.

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof. 

I claim the ornamental design for a skateboard, as shown and described. 